$red: #e33333;
$guir: #cccccc;
@mixin border($width: 1px, $style: solid, $color) {
    border: $width $style $color;
}

@mixin background($url, $color, $x, $y, $w, $h, $repeat) {
    background-image: url($url);
    background-color: $color;
    background-position: $x $y;
    background-size: $w $h;
    background-repeat: $repeat;
}